Do you have any C batteries lying around? Does anybody? Now you can turn any regular AA battery—which you're bound to have loads of—into a C battery with this Battery Adaptor II.

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Each adaptor costs only $5.50, which means for $11, you can have a lifetime's worth of C batteries without actually buying C batteries. But seriously, what uses C? Maybe midget-sized dildos? Now if we only had a way to turn some other AAs into Cs.